EP 3607104 A1 20200212 - IMPROVED METHOD FOR PRODUCING A MOTOR VEHICLE BODY STRUCTURE COMPONENT
Title (en)
IMPROVED METHOD FOR PRODUCING A MOTOR VEHICLE BODY STRUCTURE COMPONENT
Title (de)
VERBESSERTES VERFAHREN ZUR HERSTELLUNG EINER KAROSSERIESTRUKTURKOMPONENTE EINES KRAFTFAHRZEUGES
Title (fr)
PROCEDE AMELIORE DE FABRICATION DE COMPOSANT DE STRUCTURE DE CAISSE AUTOMOBILE
Publication
Application
Priority
- FR 1753018 A 20170406
- FR 2018050829 W 20180403
Abstract (en)
[origin: WO2018185425A1] The invention relates to a method for producing a stamped component of motor vehicle bodywork or body structure from aluminium alloy comprising the steps of producing a metal sheet or strip of thickness between 1.0 and 3.5 mm in an alloy of composition (% by weight): Si: 0.60-0.85; Fe: 0.05-0.25; Cu: 0.05-0.30; Mn: 0.05-0.30; Mg: 0.50-1.00; Ti: 0.02-0.10; V: 0.00-0.10 with Ti + V ≤ 0.10, other elements each < 0.05, and < 0.15 in total, with the remainder aluminium, with Mg < -2.67 x Si +2.87, dissolving and steeping, pre-tempering, maturation for between 72 hours and 6 months, stamping, tempering at a temperature of around 205°C with a hold time between 30 and 170 minutes or tempering at a time-temperature equivalent, painting and "bake hardening" of the paints at a temperature of 150 to 190°C for 15 to 30 minutes. The invention also relates to a stamped component of motor vehicle bodywork or body structure, also called a "body in white" produced by such a method.
IPC 8 full level
C22C 21/08 (2006.01); C22C 21/02 (2006.01); C22F 1/05 (2006.01)
CPC (source: EP US)
C22C 21/02 (2013.01 - EP US); C22C 21/08 (2013.01 - EP US); C22F 1/05 (2013.01 - EP US)
Citation (search report)
See references of WO 2018185425A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018185425 A1 20181011; CA 3057728 A1 20181011; CN 110494578 A 20191122; CN 110494578 B 20210924; DE 18718608 T1 20200430; EP 3607104 A1 20200212; FR 3065013 A1 20181012; FR 3065013 B1 20200807; US 11649536 B2 20230516; US 2020109466 A1 20200409
DOCDB simple family (application)
FR 2018050829 W 20180403; CA 3057728 A 20180403; CN 201880023671 A 20180403; DE 18718608 T 20180403; EP 18718608 A 20180403; FR 1753018 A 20170406; US 201816500724 A 20180403